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Abstract
Preterm labor is one of the main causes of neonatal morbimortality and one of the most frequent causes of hospitalization during pregnancy. The diagnosis is based on the presence of regular uterine contractions accompanied by cervical changes before 37 weeks of gestation. Recently, objective measures, such as the measurement of cervical length by transvaginal ultrasound and fetal fibronectin, are used for diagnosis, as this is key to the success of the management. The purpose of the treatment of preterm labor is to delay delivery for at least 48 hours, to be able to supply corticosteroids, which are the only medications that have been shown to improve fetal survival, and transfer the patient to a specialized medical center. Tocolytic treatment is reserved for women in whom the delay in childbirth will benefit the newborn and the choice is based
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References
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